Abstract
In order to control the neutral point voltage of inverter with discontinuous PWM (DPWM), this paper proposed a generalized discontinuous PWM (GDPWM) based neutral point voltage balancing method for three level neutral point clamped (NPC) voltage source inverter (VSI). Firstly, a triangle carrier based (TCB-GDPWM) is proposed. Secondly, the affection on neutral point voltage for the modulation wave are analyzed. Base on the analysis, a bang-bang control is adept to control the neutral point voltage via changing the polarity of the certain part of the common mode voltage (CMV). Finally, the proposed method is verified by simulation and experiment. The results show that the propose method has good performance at neutral point voltage control and switching losses reduction.
| Original language | English |
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| Title of host publication | Proceedings of the 2017 IEEE Applied Power Electronics Conference and Exposition (APEC) |
| Number of pages | 5 |
| Publisher | IEEE Press |
| Publication date | Mar 2017 |
| Pages | 1816-1820 |
| Article number | 7930945 |
| ISBN (Electronic) | 9781509053667 |
| DOIs | |
| Publication status | Published - Mar 2017 |
| Event | 2017 IEEE Applied Power Electronics Conference and Exposition (APEC) - Tampa Convention Center, Tampa, FL, United States Duration: 26 Mar 2017 → 30 Mar 2017 |
Conference
| Conference | 2017 IEEE Applied Power Electronics Conference and Exposition (APEC) |
|---|---|
| Location | Tampa Convention Center |
| Country/Territory | United States |
| City | Tampa, FL |
| Period | 26/03/2017 → 30/03/2017 |
Keywords
- Common mode voltage
- Discontinuous PWM
- Neutral point voltage balancing
- Three level neutral point clamped inverter